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Help a Newb achieve 4.5Ghz on i5 2500k!

post #1 of 8
Thread Starter 
I'm hoping to overclock my new i5 2500k to 4.5Ghz, but I'm completely new to overclocking.

I did, however, get a short tutorial from PCWHIZKID on youtube, although it's for a 4.8Ghz overclock.

Increase frequency from 33 to 47
Increase Voltage to 1.355
DRAM Votage increased to 1.659
Spread Spectrum - Disabled
C1E - Disabled
Overspeed Protection - Disabled
Intel C-State - Disabled
Limit CPUID Maximum - Disabled
EIST - Disabled
Internal PLL overvoltage - Enabled
Intel Turbo Boost - Enabled

This was done on a different Motherboard, so I'm not entirely sure whether it would apply to me.

My temps are:

Idle - 22c/27c

Prime95 - 53c/62 (Each core has different temps)

Would I be able to achieve a stable overclock with these temps?

Thanks!
Dave
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Dave
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post #2 of 8
those temps should be fine just make sure you run prime for 8+ hours to ensure full stability
Bernice
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post #3 of 8
Your temps are fine. You shouldn't have any problem reaching 4.5. Using the auto tuner will easily get you there. Manually doing it will provide better results though (lower Vcore and lower temps). You can probably keep most of those settings on auto and very easily reach 4.5. Try seeting the blck at 100 and just bumping the multiplier up to 45 and slowly adjusting your Vcore and see what happens with everything else left alone. I didn't need to make any further changes until I tried going above 4.7.
Missing Sue
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Missing Sue
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by Lou3824 View Post
Your temps are fine. You shouldn't have any problem reaching 4.5. Using the auto tuner will easily get you there. Manually doing it will provide better results though (lower Vcore and lower temps). You can probably keep most of those settings on auto and very easily reach 4.5. Try seeting the blck at 100 and just bumping the multiplier up to 45 and slowly adjusting your Vcore and see what happens with everything else left alone. I didn't need to make any further changes until I tried going above 4.7.
So, just increase the voltage and the multiplier? I assume 1.3v is a good starting point.

What is the "Blck"?

Is PCWHIZKID's tutorial a good basis for the overclock?

One thing I'm worried about is the temps. I got the load temps from running Prime95 in torture mode. I'm using a thermaltake Frio, so I thought I would have got lower temps - perhaps around 48c.

These temps were achieved with all stock settings.
Dave
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Dave
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post #5 of 8
Quote:
Originally Posted by Collie View Post
So, just increase the voltage and the multiplier? I assume 1.3v is a good starting point.

What is the "Blck"?

Is PCWHIZKID's tutorial a good basis for the overclock?

One thing I'm worried about is the temps. I got the load temps from running Prime95 in torture mode. I'm using a thermaltake Frio, so I thought I would have got lower temps - perhaps around 48c.

These temps were achieved with all stock settings.
All chips are different, so you might need more VCore. Start out with 1.3 though and see what happens. Run Prime blend for an hour. If you get errors, bump the Vcore up slightly until its stable. 1.3 might even be too much, so if its stable for an hour, lower the Vcore a little at a time until it isn't. This is how I found out what Vcore is needed for my chip to run at each multiplier level. I hit 4.5 with 1.26v on my 2600K. Seems the 2500Ks typically need less though, so you most likely will get there at 1.3.

Don't worry about your temps at all. Prime really stresses things and your temps are easily within range.
Missing Sue
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Missing Sue
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post #6 of 8
1.3v+ for 4.7ghz lol...
My System
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My System
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post #7 of 8
Quote:
Originally Posted by John_w View Post
1.3v+ for 4.7ghz lol...
Where do you see 1.3 for 4.7??? The title of the thread says 4.5 and no where in the thread is 4.7 discussed as a goal for the OP. If you're going to LOL at someone, perhaps you should read things correctly first.
Missing Sue
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Missing Sue
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post #8 of 8
Thread Starter 
I went into the BIOS and clicked OC tuner. Didn't expect the computer to simply shut down.

I then went into CPUZ and realised that it automatically overclocked the CPU to 4.3Ghz.

Turns out that the temps I got at full load on prime95 (53/57/60/62) were achieved with the overclock. I thought I was running it with stock OC!

Those temps seem pretty good!

I'll try a manual overclock now soon. Even on 4.3Ghz the i5 is a beast. I played Arma 2 for a while and the temps never went over 48c.

I'm impressed!
Dave
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CPUMotherboardGraphicsRAM
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Samsung F3 1TB Windows 7 64bit Dell U2311H Antec Truepower New 750w 
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Cooler Master HAF 922 
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Dave
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Samsung F3 1TB Windows 7 64bit Dell U2311H Antec Truepower New 750w 
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